I installed the TOP Racing CVD Pin retainers on my Xray last week. They don't fit as nicely as they do on TOP/Tamiya/Hot Bodies CVDs, but they work well. In the front, the upper camber link screw was slightly rubbing on the retainer, so I had to add another .5mm shim to the outside link, at least with the kit ball ends (I was only running a 1mm shim previously).